Valve



July 28, 1936. c. w. SRQULL VALVE Filed Feb'. 27,1956

Patented July 28, 1936 UNITED ,SflATES lrarer oFFlcE vALvE I 4 Charles Sp1-null,v Houston, Tex. Application February 27, 193s, serial No. 66,010 4 claims. (01.251-7-96) This invention relates to a valve.

An object of the invention is to provide a valve of the character described having a controlling assembly therein whereby the valve may be opened and closed and which has a substantially continuous conduit therethrough when the valve is in open position without internal pockets or recesses for the collectionof detritus. y s

Another object of the invention is tolprovide a valve mechanism including a casing having a fixed core therein provided with` a conduit which is aligned with the conduit through the casing with an expansible sleeve about the core having openings, and movable into `one position to align the openings with said conduits andinto another position with the sleeve openingsout=of such alignment to close said conduits, said core and sleeve having co-acting parts effective to expand the sleeve to form a fluid-tight joint with the casing when the sleeve reaches' the limit of its movement into either of said positions.

A further object of the invention is to provide a valve of the character described having novel means for operating thesleev'e-into open or closed position. l

It is anotherobject ofthe invention to provide a valve having a casing and a controlling assembly therein mounted to protect the casing against the abrading influence of gritty fluid being conducted under pressure through the valve.

With the above and other objects in View the invention has particular relation to certain novel features of construction, operation, and arrangement of parts, an example of which is given in this specication and illustrated in the accompanying drawing wherein:

Figure 1 shows a sectional view of the valve.

Figure 2 shows a side elevation.

Figure 3 shows a cross-sectional view of the operating stem.

Figure 4 shows an end view of the valve sleeve.

Figure 5 shows a longitudinal; sectional view thereof, and,

Figure 6 shows a cross-sectional view of the valve taken on the line 6-6 of Figure 2.

Referring now more particularly to the drawing wherein like numerals of reference designate similar parts in each of the gures, the numeral I designates a valve casing having the conduit 2 therethrough which is in alignment with the fluid-conducting pipes 3, 3, which are connected into the valve casing.

There is a i'lxed core 4 in the casing having a conduit 5 therethrough which is in alignment irom the casing all the way around and threaded onto the core and iitted closely in the casing there is the sleeve 'I which is split from end to end at one side, as at 8, to permit its expansion 10 and contraction, and on the other side is provided with vthe external, longitudinal groove 9. The sleeve has the oppositely dis-posed openings I0, I IJ, substantially equal in diameter to the diameter of the conduits 2, 5. Said sleeve is turnable to one 15 position to align the openings I0 with said conduits to permit the flow of4 fluid through the valve and is turnable into another position to carry the openings III out of alignment with said v A conduits to prevent such ilow. 20 There are the anti-friction rings II between the valve casing and one end of the sleeve 'I, and other end of the sleeve is formed with notches I2. There is an operating stem I3 whose inner end is provided with an external, annular `flange 25 VVI4 having the radial lugs I5 which work in the notches I2.

There is a bonnet I6 tted over and enclosing the stem I3, and between the inner end of the bonnet and the iiange I4 are the anti-friction 3o bearing rings I'I. The inner end of the bonnet I 6 is reduced and externally threaded and has an annular gland I8 screwed thereon whose inner face is tapered and ts into a correspondingly tapered seat I9 of the valve casing. The 35 gland I8 is of a greater outside diameter than that of the bonnet I 6 and a flange nut 20 is iitted around the bonnet and screwed onto the valve casing and has an internal, annular flange 2| which engages the gland I8 to maintain the bon- 40 net assembled with the valve casing. The outer end of the stem I3 has the external screw threads 22, and mounted in the outer end of the bonnet there is an operating stem 23 whose outer end carries the handwheel 24 and whose inner end 45 is formed with a screw-gear 25 in mesh with the gear 22. The stem 23 has suitable bearings in the bonnet on opposite sides of the gear 25 and is also packed with a suitable stu'ing box 26. By turning the stem 23, the stem I3 will also be 50 turned, imparting rotation also to the sleeve 1. As said sleeve is turned, it will also be moved longitudinally relative to the core 4 on account of its threaded connection therewith. When the sleeve is turned a quarter turn in one direction, 55

it Will carry the openings I0 into alignment with the conduit 2 and is arranged to be stopped in said position by its thrust against the friction rings Il. A further attempt to turn the sleeve 1 will cause thelinter'meshing threads of the sleeve to, ride up on the corresponding threads of the core 4, as illustrated in Figure 1, causing a uniform expansion of the sleeve and causing it to t tightly in the Valve casing to prevent leakage. When the stem 23 is turned in the other direction, the stern I3 and sleeve 1 will be correspondingly turned in said last-mentioned direction carrying the openings l0 out of registration with the conduit 2 and the col-action of the threads will move the sleeve 'l longitudinally against the flange I4, and a further attempt to turn said stem will cause the threads of the sleeve to ride up on the threads of the core 4 "in thereverse position to that indicated in Figure 1 causing a uniform expansion of the sleeve, and thus caus- .ing the sleeve to iit tightly in the valve casing to prevent leakage. Y

It will be noted that the sleeve 1 will protect the parts of the valve casing adjacent the conduit 2 and prevent said casing from being cut turned. f Y

A grease gun connection 2l may be located in the housing 6 and screwed into the valve Vcas,- ing I. Leading from this connection through the core 4 there is a channel 28 which terminates in an annular channel 28 aroundthe core. A lubricant may be forced through the channels 28 and 29 and will find its Way between the intermesh ing threads above referred to and will also pass along the groove 9 and the slot 8, located at the open side of the sleeve 1, and will finally i'lnd its way to all the internal working parts so as tokeep the same thoroughly lubricated. A heavy grease or oil may be used so as to also prevent leakage ofthe fluid being conducted through the valve.

The drawing and description disclose what is now considered to be a preferred form of the invention by way of illustration only while the broad principle of the invention will be deiined by the appended claims.

What I claim is:

1. A valve comprising a casing having a flow conduit therethrough, a core xed in the casing having a conduit therethrough, said conduits being in alignment, an expansible sleeve on the core having openings, means for turning the sleeve to move the openings into and out of registration with the conduits and co-*actingmeans on the core and sleeve effective to expand the sleeve when `it reaches the limit of its movement in either ing and surrounding the core, the casing and core having a iioW-way and the sleeve having openings arranged to move into and out of align ment with the flow-way as the sleeve is correspondingly turned, said core and sleeve having co-acting sloping faces eifective to expand the sleeve when the sleeve reaches the-limit of its movementA in either direction.

' 3. A valve comprising a casing, an externally threaded core iixed therein, an expansible sleeve `fitted into the casing and threaded onto the core,

ings and being turnable'` to move the openings into and out of registration with the flow-way.

4. A valve comprising a casing, an externally threaded core fixed therein, an expansible sleeve fitted into the casing'and threadedV ontothe core, saidcasing and. core having a flow-way therethrough,` the sleeve being provided with openings and 4being turnable to move the openings into and out of registration with the now-way, a stemturnable in the casing and clutched with the sleeve and having an abutment thereon at one end of the sleeve, antifriction means in the casing at the other end of the sleeve, said abutment vand anti-friction means forming stops to limit the -endwlse movement of the sleeve in each direction.

CHARLES W. SPROULL. 

